Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Development of Shift Map for TMED Type DCT PHEV in Charge Sustaining Mode considering Transmission and Motor Losses

변속기 및 모터 손실을 고려한 TMED Type DCT PHEV의 CS 모드 주행 시 변속맵 개발

  • Jeon, Sungbae (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Bae, Kyunggook (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Wi, Junbeom (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Namkoong, Choul (R&D Center, Seojin Automotive Company) ;
  • Goo, Changgi (R&D Center, Seojin Automotive Company) ;
  • Lee, Ji-suk (R&D Center, Seojin Automotive Company) ;
  • Hwang, Sung-Ho (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Hyunsoo (School of Mechanical Engineering, Sungkyunkwan University)
  • 전성배 (성균관대학교 기계공학부) ;
  • 배경국 (성균관대학교 기계공학부) ;
  • 위준범 (성균관대학교 기계공학부) ;
  • 남궁철 (서진 오토모티브 기술연구소) ;
  • 구창기 (서진 오토모티브 기술연구소) ;
  • 이지석 (서진 오토모티브 기술연구소) ;
  • 황성호 (성균관대학교 기계공학부) ;
  • 김현수 (성균관대학교 기계공학부)
  • Received : 2017.02.07
  • Accepted : 2017.04.06
  • Published : 2017.05.01
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Abstract

In this paper, a new shift map was proposed to improve the fuel economy of a transmission mounted electric device(TMED) type dual clutch transmission(DCT) plug-in hybrid electric vehicle(PHEV) by considering transmission and motor losses. To construct the shift map, powertrain efficiencies of the engine-DCT-motor were obtained at each gear step. A shift map that provides the highest powertrain efficiency was constructed for the given wheel torque and vehicle speed. Simulation results showed that the fuel economy of the target PHEV can be improved by the new shift map compared with the existing engine optimal operating line(OOL) shift control.

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References

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